Potomac Heights is a census-designated place (CDP) in Charles County, Maryland, United States. The population was 1,117 at the 2010 census. It has a volunteer fire department and numerous older rambler homes built for workers at the nearby U.S. Navy munitions plant in Indian Head (now known as the Indian Head Naval Surface Warfare Center).
Potomac Heights is located at 38°36′5″N 77°7′56″W / 38.60139°N 77.13222°W / 38.60139; -77.13222 (38.601268, −77.132316).
According to the United States Census Bureau, the CDP has a total area of 1.3 square miles (3.4 km), of which 1.1 square miles (2.8 km) is land and 0.2 square miles (0.52 km), or 15.04%, is water.
As of the census of 2000, there were 1,154 people, 543 households, and 312 families residing in the CDP. The population density was 1,016.8 people per square mile (394.3/km²). There were 569 housing units at an average density of 501.4/sq mi (194.4/km²). The racial makeup of the CDP was 93.07% White, 5.55% African American, 0.17% Native American, 0.61% from other races, and 0.61% from two or more races. Hispanic or Latino of any race were 0.95% of the population.
There were 543 households out of which 24.7% had children under the age of 18 living with them, 38.5% were married couples living together, 13.1% had a female householder with no husband present, and 42.5% were non-families. 39.0% of all households were made up of individuals and 22.3% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.81.
In the CDP, the population was spread out with 21.7% under the age of 18, 7.0% from 18 to 24, 29.6% from 25 to 44, 20.4% from 45 to 64, and 21.3% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 83.2 males. For every 100 females age 18 and over, there were 78.7 males.
The median income for a household in the CDP was $35,556, and the median income for a family was $45,833. Males had a median income of $34,837 versus $29,722 for females. The per capita income for the CDP was $19,656. About 5.2% of families and 7.0% of the population were below the poverty line, including 11.0% of those under age 18 and 9.2% of those age 65 or over.